Multilayer piezoelectric devices and method of producing same

A method of producing a multilayer piezoelectric device:

• said device comprising a laminated body comprising a plurality of piezoelectric layers laminated in the direction of a given axis and internal electrode layers each disposed between two respective neighboring piezoelectric layers, a underlying layer disposed on a side face of the laminated body and electrically connected with the internal electrode layers, a first conductive reinforcing layer joined to the underlying layer, a second conductive reinforcing layer joined to the first conductive reinforcing layer and a conductive joining material joining the underlying layer and the first conductive reinforcing layer,
• said method comprising the steps of:
• joining the first conductive reinforcing layer to the second conductive reinforcing layer;
• and
• then joining the first conductive reinforcing layer to the underlying layer by means of the conductive joining material, so as to avoid joining of the second conductive reinforcing layer to the underlying layer by means of the conductive joining material.